A method for evaluating the capacity of a guide frequency point

Abstract

The application discloses a kind of guided frequency point capacity evaluation methods, comprising the following steps: calculating in different operational phase frequency point multiplexing, the time interval t of two aircrafts using same frequency point in succession w (u,v);Calculate the use time of each frequency point Calculate the multiplexing number of frequency point in each operational phase Based on operational plan, calculate the available number of aircraft in the planning frequency range Calculate the number of aircraft in the whole operational airspace S Calculate the guided frequency point capacity of the whole operational period The application can construct algorithm model according to dynamic operational airspace setting, airspace quantity and spectrum planning, and accurately calculate the operational airspace capacity based on frequency point in real time, which provides important support for evaluating the feasibility of airspace setting of operational plan and the rationality of operational plan.

Description

Technical Field

[0001] This invention belongs to the field of mathematical modeling technology, and in particular relates to a method for evaluating the capacity of guidance frequency points. Background Technology

[0002] In the context of information warfare, the operational space is multidimensional, combat forces are diversified, the pace of war is significantly accelerated, and system-on-system confrontation is becoming increasingly fierce. Joint operations, conducted with close coordination among various branches of the armed forces, will inevitably become the main mode of combat. As a primary mode of combat in information warfare, joint air operations will inevitably present a complex situation in the air battlefield, characterized by intermingling of enemy and friendly forces, air-ground integration, and interwoven offense and defense. Effectively planning, allocating, and utilizing airspace resources to ensure the smooth implementation of combat operations by all branches of the armed forces requires accurate analysis and assessment of battlefield airspace capacity.

[0003] Guidance frequency capacity is a crucial component of battlefield airspace capacity. Military communication, radar detection, satellite navigation, weapon guidance, and electronic warfare systems all require sufficient electromagnetic spectrum resources. Maximizing the fulfillment of frequency requirements for operational airspace equipment within limited spectrum resources and frequency planning, and thereby improving the operational effectiveness of frequency-using equipment, is key to enhancing the combat capability of joint operations forces. When formulating operational plans, it is necessary to analyze spectrum resource planning schemes. Based on the operational airspace setup, number of airspaces, and spectrum planning, the operational airspace capacity based on frequency points must be analyzed. This provides crucial evidence for subsequent assessments of the feasibility of airspace setup and the rationality of operational plans.

[0004] Therefore, the problem with existing technologies is that it is difficult to accurately calculate the operational airspace capacity based on frequency points, which is of great importance for assessing the feasibility of airspace settings and the rationality of operational plans. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a guidance frequency point capacity assessment method. This method has the advantage of being able to construct an algorithm model based on dynamic operational airspace settings, airspace quantity, and spectrum planning to accurately calculate the frequency-based operational airspace capacity in real time. This provides crucial support for assessing the feasibility of airspace settings and the rationality of operational plans, and solves the problem in the prior art of accurately calculating frequency-based operational airspace capacity, thus providing crucial support for assessing the feasibility of airspace settings and the rationality of operational plans.

[0006] This invention is implemented as follows: a method for evaluating the capacity of guidance frequency points, comprising the following steps: Calculate the time interval between two aircraft using the same frequency successively when frequency reuse occurs at different operational phases. ; Calculate the usage time of each frequency point ; Calculate the number of times a frequency point is reused in each operational phase. ; Based on the operational plan, calculate the number of available aircraft within the planned frequency range. ; Calculate the number of aircraft sorties in the entire combat airspace S. ; Calculate the guidance frequency capacity throughout the entire combat cycle. .

[0007] The number of sorties in air combat is determined based on operational missions, and capacity assessment aims to analyze whether a given airspace structure can meet the operational mission requirements. This invention addresses the complexity and diversity of airspace operational environments by considering the buffer time required for switching aircraft after frequency reuse, increasing the model's anti-jamming capability, and obtaining accurate operational airspace capacity for guidance frequencies. It can construct an algorithm model based on dynamic operational airspace settings, airspace quantity, and spectrum planning to accurately calculate frequency-based operational airspace capacity in real time, providing crucial support for evaluating the feasibility of airspace settings and the rationality of operational plans.

[0008] As a preferred embodiment of the present invention, it further includes the step of presetting the following parameters: the entire combat cycle is Combat airspace is grouped into The set of frequency resources in all airspace is The collection of frequency-using aircraft is The collection of aircraft models is The set of missiles carried by each aircraft type is: .

[0009] As a preferred embodiment of the present invention, the entire combat cycle Divided into Each operational phase, namely ; The number of airspaces is Combat airspace assembly ; Set of frequency resources in all spatial domains ; The number of operational frequency-using devices or the number of frequency-using aircraft are ,Right now ; The collection of aircraft models is ; The set of missiles carried by each aircraft type is .

[0010] As a preferred embodiment of the present invention, the calculation of the time interval between two aircraft using the same frequency successively when frequency reuse occurs at different operational phases is described. The methods include: The mission time is determined based on the aircraft type and the number of frequency-sensitive missiles carried by each type. ,in, The correlation coefficient between aircraft type and the number of frequency-sensitive missiles carried by each aircraft type; Assume the standard deviation of the normal distribution of the time that the frequency-using aircraft occupy the frequency points sequentially is . The probability of no guidance conflict is This yields the buffer time required for switching aircraft frequencies during actual guidance processes. ,in, ; Based on the time the frequency is occupied by the frequency-using aircraft and the buffer time required for switching aircraft frequencies during actual guidance processes. When frequency reuse occurs at different operational phases, the time interval between two aircraft using the same frequency successively is obtained. ,in, ; As a preferred embodiment of the present invention, the calculation of the usage time for each frequency point is... The methods include: Set the entire operational cycle In each combat period Inside, among them, Guidance frequency All can be reused, among which, ; Assuming that two adjacent spatial domains may interfere with each other, and that no two adjacent spatial domains have overlapping frequencies, for each frequency... , can be The number of frequency-using devices provides guidance, and the frequency points in each airspace are... The number of frequency points is And satisfy ,and ; The usage time of each frequency point is the weighted average of the usage time of the frequency point by aircraft within the same airspace, and the calculation formula is as follows: in, For aircraft The probability of them appearing in the same spatial domain. For aircraft The probability of them appearing in the same spatial domain; As a preferred embodiment of the present invention, the calculation of the number of times the frequency point is reused in each operational phase is described. The methods include: Select any airspace ,in, Its spatial frequency is ,and The planned frequency usage order within its airspace is as follows: The time occupied for each frequency point is defined as follows: Each phase of the operation The frequency reuse count is The calculation formula is as follows: For air combat, the spectrum planning phase has already taken into account the mutual interference between frequencies used in different airspaces. Therefore, the model construction meets the following conditions: The same frequency-using equipment uses the same frequency point throughout all phases of the operation, from the start to the end of the operation, and performs frequency switching operations when a conflict occurs. Frequency points are used in multiple predefined airspaces, and the frequencies between airspaces do not interfere with each other. As a preferred embodiment of the present invention, the step of calculating the number of available aircraft within the planned frequency range based on the operational plan is... The methods include: based on the operational plan within any operational cycle, for any airspace within any time slice The number of available aircraft flights within the planned frequency range is ,in, The calculation formula is as follows: ; As a preferred embodiment of the present invention, the calculation of the number of aircraft sorties in the entire combat airspace S is... The methods include: Based on the number of available aircraft within the planned frequency range During the combat phase ,in, The number of aircraft sorties in the entire combat airspace S was The calculation formula is as follows: ; As a preferred embodiment of the present invention, the calculation of the guidance frequency capacity throughout the entire combat cycle is... The methods include: Based on the above calculation, the number of aircraft sorties in the entire combat airspace S is calculated. The entire operational cycle The internal guidance frequency capacity is The calculation formula is as follows: ; As a preferred embodiment of the present invention, the following steps are also included: Based on the entire operational cycle The internal guidance frequency capacity is and the operational cycle This yields the number of frequency-consuming aircraft that can be accommodated per unit hour. The calculation formula is as follows: .

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention proposes the concept of battlefield airspace capacity. The number of sorties in the air battlefield is determined based on the combat mission, and the purpose of capacity assessment is to analyze whether a given airspace structure can meet the combat mission scenario. This invention addresses the complexity and diversity of airspace combat environment changes, considers the buffer time required for switching aircraft after frequency reuse, increases the model's anti-jamming capability, and obtains accurate guidance frequency combat airspace capacity. Attached Figure Description

[0012] Figure 1 This is a flowchart of the guidance frequency point capacity assessment method provided in the embodiments of the present invention; Figure 2 This invention provides a method for calculating the time interval between two aircraft using the same frequency sequentially during frequency reuse at different operational phases. Method flowchart; Figure 3 This invention provides a method for calculating the usage time of each frequency point. Method flowchart; Figure 4 This invention provides a method for calculating the number of frequency points reused in each operational phase. Method flowchart; Figure 5 This is a frequency usage plan diagram for each stage of the spatial domain when planning the frequency usage sequence in the spatial domain, as provided in the embodiments of the present invention. Detailed Implementation

[0013] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0014] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0015] Please see Figure 1 The present invention provides a method for evaluating the capacity of guidance frequency points, comprising the following steps: Step S1: Calculate the time interval between two aircraft using the same frequency successively when frequency reuse occurs at different operational phases. ; Step S2: Calculate the usage time for each frequency point. ; Step S3: Calculate the number of times a frequency point is reused in each operational phase. ; Step S4: Based on the operational plan, calculate the number of available aircraft flights within the planned frequency range. ; Step S5: Calculate the number of aircraft sorties in the entire combat airspace S. ; Step S6: Calculate the guidance frequency capacity for the entire combat cycle. .

[0016] This invention proposes the concept of battlefield airspace capacity. The number of sorties in the air battlefield is determined based on the combat mission, and the purpose of capacity assessment is to analyze whether a given airspace structure can meet the combat mission. Addressing the complexity and diversity of airspace combat environments, this invention considers the buffer time required for switching aircraft after frequency reuse, increases the model's anti-jamming capability, and obtains accurate guidance frequency-based combat airspace capacity. Based on dynamic combat airspace settings, airspace quantity, and spectrum planning, an algorithm model can be constructed to accurately calculate frequency-based combat airspace capacity in real time, providing crucial support for evaluating the feasibility of airspace settings and the rationality of combat plans.

[0017] Furthermore, prior to step S1, the following steps are included: the entire combat cycle is... Combat airspace is grouped into The set of frequency resources in all airspace is The collection of frequency-using aircraft is The collection of aircraft models is The set of missiles carried by each aircraft type is: .

[0018] Specifically, the entire operational cycle Divided into Each operational phase, namely ; The number of airspaces is Combat airspace assembly ; Set of frequency resources in all spatial domains ; The number of operational frequency-using devices or the number of frequency-using aircraft are ,Right now ; The collection of aircraft models is ; The set of missiles carried by each aircraft type is .

[0019] Please see Figure 2In step S1, the calculation involves determining the time interval between two aircraft using the same frequency sequentially during frequency reuse at different operational phases. The methods include: Step S11: Obtain the mission time based on the aircraft type and the number of frequency-controlled missiles carried by each aircraft type; ,in, The correlation coefficient between aircraft type and the number of frequency-sensitive missiles carried by each aircraft type; Step S12: Assume that the standard deviation of the normal distribution of the time that the frequency-using aircraft occupy the frequency point sequentially is... The probability of no guidance conflict is This yields the buffer time required for switching aircraft frequencies during actual guidance processes. ,in, ; Step S13: Based on the frequency occupied by the frequency-using aircraft and the buffer time required for switching aircraft frequencies during actual guidance processes. When frequency reuse occurs at different operational phases, the time interval between two aircraft using the same frequency successively is obtained. ,in, .

[0020] Specifically, in different stages of combat When reusing frequencies, the same frequency is used successively. aircraft and aircraft time interval It consists of two parts, one of which is the time the frequency is occupied by the aircraft. Secondly, the buffer time required for switching aircraft frequencies during actual guidance processes. ,Right now .

[0021] In formulating aviation plans, mission durations are specified. Although the actual frequency usage time of combat aircraft is not fixed, it is related to the aircraft type and the number of frequency-using missiles carried by each type, and both satisfy a two-dimensional normal distribution, denoted as . .in This is the correlation coefficient between the aircraft type and the number of frequency-sensitive missiles carried by each aircraft type.

[0022] Based on this, we assume that the standard deviation of the normal distribution of the time that frequency-using aircraft occupy frequency points sequentially is... If the probability of no guidance conflict occurring is q, then the buffer time is... .

[0023] Please see Figure 3In step S2, the usage time of each frequency point is calculated. The methods include: Step S21: Set the entire combat cycle In each combat period Inside, among them, Guidance frequency All can be reused, among which, ; Step S22: Assume that two adjacent airspaces may interfere with each other, and that there are no overlapping frequency points between two adjacent airspaces. For each frequency point... , can be The number of frequency-using devices provides guidance, and the frequency points in each airspace are... The number of frequency points is And satisfy ,and ; Step S23: The usage time of each frequency point is the weighted average of the usage time of the frequency point by aircraft within the same airspace, and its calculation formula is as follows: in, For aircraft The probability of them appearing in the same spatial domain. For aircraft The probability of them appearing in the same airspace.

[0024] Please see Figure 4 In step S3, the number of frequency points reused in each operational phase is calculated. The methods include: Step S31: Select any airspace ,in, Its spatial frequency is ,and The planned frequency usage order within its airspace is as follows: Step S32: The time occupied for each frequency point is set as follows. Each phase of the operation The frequency reuse count is The calculation formula is as follows: For air combat, the spectrum planning phase has already taken into account the mutual interference between frequencies used in different airspaces. Therefore, the model construction meets the following conditions: The same frequency-using equipment uses the same frequency point throughout all phases of the operation, from the start to the end of the operation, and performs frequency switching operations when a conflict occurs. Frequency points are used in multiple predefined airspaces, and the frequencies between airspaces do not interfere with each other.

[0025] Specifically, when planning the frequency usage sequence within its airspace, please refer to the frequency usage plan for each stage of the airspace. Figure 5 .

[0026] In step S4, based on the operational plan, the number of available aircraft within the planned frequency range is calculated. The methods include: based on the operational plan within any operational cycle, for any airspace within any time slice The number of available aircraft flights within the planned frequency range is ,in, The calculation formula is as follows: .

[0027] In step S5, the number of aircraft sorties in the entire combat airspace S is calculated. The methods include: Based on the number of available aircraft within the planned frequency range During the combat phase ,in, The number of aircraft sorties in the entire combat airspace S was The calculation formula is as follows: ; In step S6, the guidance frequency capacity for the entire combat cycle is calculated. The methods include: Based on the above calculation, the number of aircraft sorties in the entire combat airspace S is calculated. The entire operational cycle The internal guidance frequency capacity is The calculation formula is as follows: .

[0028] Furthermore, it also includes the following steps: Based on the entire operational cycle The internal guidance frequency capacity is and the operational cycle This yields the number of frequency-consuming aircraft that can be accommodated per unit hour. The calculation formula is as follows: .

[0029] Working principle of the invention: In practice, the factors affecting guidance frequency capacity are first analyzed. Then, the aircraft buffer time that may result from frequency reuse during different operational phases is considered. By calculating the usage time of each frequency, the number of times a frequency is reused in each operational phase, and the number of available aircraft in the entire airspace, the accurate guidance frequency capacity for the entire operational cycle is obtained. This invention enables accurate calculation of guidance frequency capacity in complex and ever-changing operational airspace, providing an important basis for subsequent formulation of reasonable operational plans.

[0030] In summary, this guidance frequency capacity assessment method calculates the time interval between two aircraft using the same frequency successively during frequency reuse at different operational phases. ; Calculate the usage time for each frequency point Calculate the number of times a frequency point is reused in each operational phase. Based on the operational plan, calculate the number of available aircraft flights within the planned frequency range. ; Calculate the number of aircraft sorties in the entire combat airspace S ; Calculate the guidance frequency capacity throughout the entire combat cycle It has the advantage of being able to construct an algorithm model to accurately calculate the frequency-based operational airspace capacity in real time based on dynamic operational airspace settings, airspace quantity, and spectrum planning. This provides important support for evaluating the feasibility of airspace settings and the rationality of operational plans, and solves the problem of difficulty in accurately calculating frequency-based operational airspace capacity, thus providing important support for evaluating the feasibility of airspace settings and the rationality of operational plans.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for evaluating the capacity of guidance frequency points, characterized in that, Includes the following steps: Calculate the time interval between two aircraft using the same frequency successively when frequency reuse occurs at different operational phases. ; Calculate the usage time of each frequency point ; Calculate the number of times a frequency point is reused in each operational phase. ; Based on the operational plan, calculate the number of available aircraft within the planned frequency range. ; Calculate the number of aircraft sorties in the entire combat airspace S. ; Calculate the guidance frequency capacity throughout the entire combat cycle. ; It also includes steps to preset the following parameters: the entire combat cycle is Combat airspace is grouped into The set of frequency resources in all airspace is The collection of frequency-using aircraft is The collection of aircraft models is The set of missiles carried by each aircraft type is: ; The entire operational cycle Divided into Each operational phase, namely ; The number of airspaces is Combat airspace assembly ; Set of frequency resources in all spatial domains ; The number of operational frequency-using devices or the number of frequency-using aircraft are ,Right now ; The collection of aircraft models is ; The set of missiles carried by each aircraft type is ; The calculation refers to the time interval between two aircraft using the same frequency successively when frequency reuse occurs at different operational phases. The methods include: The mission time is determined based on the aircraft type and the number of frequency-sensitive missiles carried by each type. ,in, The correlation coefficient between aircraft type and the number of frequency-sensitive missiles carried by each aircraft type; Assume the standard deviation of the normal distribution of the time that the frequency-using aircraft occupy the frequency points sequentially is . The probability of no guidance conflict is This yields the buffer time required for switching aircraft frequencies during actual guidance processes. ,in, ; Based on the time the frequency is occupied by the frequency-using aircraft and the buffer time required for switching aircraft frequencies during actual guidance processes. When frequency reuse occurs at different operational phases, the time interval between two aircraft using the same frequency successively is obtained. ,in, ; The calculation of the usage time for each frequency point The methods include: Set the entire operational cycle In each combat period Inside, among them, Guidance frequency All can be reused, among which, ; Assuming that two adjacent spatial domains may interfere with each other, and that no two adjacent spatial domains have overlapping frequencies, for each frequency... , can be The number of frequency-using devices provides guidance, and the frequency points in each airspace are... The number of frequency points is And satisfy ,and ; The usage time of each frequency point is the weighted average of the usage time of the frequency point by aircraft within the same airspace, and the calculation formula is as follows: in, For aircraft The probability of them appearing in the same spatial domain. For aircraft The probability of them appearing in the same spatial domain; The calculation of the frequency reuse count in each operational phase The methods include: Select any airspace ,in, Its spatial frequency is ,and The planned frequency usage order within its airspace is as follows: The time occupied for each frequency point is defined as follows: Each phase of the operation The frequency reuse count is The calculation formula is as follows: For air combat, the spectrum planning phase has already taken into account the mutual interference between frequencies used in different airspaces. Therefore, the model construction meets the following conditions: The same frequency-using equipment uses the same frequency point throughout all phases of the operation, from the start to the end of the operation, and performs frequency switching operations when a conflict occurs. Frequency points are used in multiple predefined airspaces, and the frequencies between airspaces do not interfere with each other. The calculation of available aircraft counts within the planned frequency range is based on the operational plan. The methods include: based on the operational plan within any operational cycle, for any airspace within any time slice The number of available aircraft flights within the planned frequency range is ,in, The calculation formula is as follows: ； The calculation of the number of aircraft sorties in the entire combat airspace S. The methods include: Based on the number of available aircraft within the planned frequency range During the combat phase ,in, The number of aircraft sorties in the entire combat airspace S was The calculation formula is as follows: ； The calculation of guidance frequency capacity throughout the entire combat cycle The methods include: Based on the above calculation, the number of aircraft sorties in the entire combat airspace S is calculated. The entire operational cycle The internal guidance frequency capacity is The calculation formula is as follows: ； It also includes the following steps: Based on the entire operational cycle The internal guidance frequency capacity is and the operational cycle This yields the number of frequency-consuming aircraft that can be accommodated per unit hour. The calculation formula is as follows: 。

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